
The AirTAC JSID Double Rod Cylinder JSID40X400 is a genuine double acting, double rod JIS-standard air cylinder with a Ø40mm bore and 400mm stroke, G1/4 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
Delivering 528 N of thrust in both directions at 0.5 MPa, this 40 mm bore double-rod actuator uses its rod-side pressure area for perfectly symmetric push and pull output. The twin-rod architecture resists torsional twist and lets you mount a sensor cam or tooling on the back end, while the hard-anodized aluminum profile barrel keeps the overall body shorter than an equivalent ISO 15552 cylinder.
This SKU lacks a piston magnet, so it cannot accept CMSE or DMSE switches without upgrading to the -S variant. The fluid port is G1/4, and adjustable 20.5 mm air cushions decelerate the piston at both stroke ends.
| Model | Airtac JSID Double Rod Cylinder JSID40X400 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 20.5 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
| Max (@1.0 MPa) | 108 kgf | |
Double-rod: the rod passes through both covers, so output force is equal in both directions.
| JSID | JIS-standard profile cylinder (double-rod type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Drives a part pusher on the front rod and a synchronized reject cam on the rear rod, using the equal 528 N force to move components between conveyor stations.
Holds a workpiece flat against a machining fixture, using the torsional stiffness of the through-rod design to avoid jaw rotation during clamping.
Sizing spans both directions: step down to a 32 mm bore for 345 N, or step up to a 50 mm bore for 825 N of equal-both-ways force at 0.5 MPa. Choose this double-rod layout when your mechanism demands anti-rotation guidance, symmetric load distribution, or twin tooling driven from one piston. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the stroke is 400 mm, always support the load with an external guide to prevent rod bending and premature seal wear. Note that this non-magnetic model cannot host position sensors.
Quick checklist
The force is equal in both directions at 528 N at 0.5 MPa and 739 N at 0.7 MPa, with a theoretical maximum of 108 kgf at 1.0 MPa. The air port size is G1/4.
No, a plain double-rod cylinder drifts on air loss because the internal cushions only decelerate the piston near the stroke ends. To hold a load securely, fit an external rod lock or a pilot-operated check valve.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.